I am in the process of helping one of my HR colleagues with the definition of tasks & projects performed by the active directory team [including tier 1, 2 and 3], and we need your help to provide the following information:

Define daily/weekly/monthly tasks performed by Tier 1 and Engineers 1

Same as above but for Tier2 and 3 teams

Anticipate projects that AD team might be involved[high level description]

Please find below as requested.Tier 1 AD engineer Responsibilities.
Based on experience there is nothing much Tier1 AD can do because of the importance and dependability of AD infrastructure in an organisation or an establishment
Daily routine tasks include:

Perform & Verify backups.

Check available disk space.

Verify network connectivity and services. Verify that network connectivity (LAN, WAN, Internet) is functional and that network services are available (DNS, DHCP, proxy). Use Ping, Ipconfig, Tracert, System Monitor.

All these can be deployed as Admin scripts - Powershell etc

These tasks can be converted to weekly and monthly.

Tier 2 AD engineer Responsibilities.

All Tier 1 AD engineer responsibilities

Site basics and replication topologies, processes, and diagnostics

Group Policy architecture, planning, management, and diagnostics

Security and permission architecture and management scenarios

Creation of subOUs, groups, and appropriate security permissions.

Manage the Users and Computers Containers

Tier 3 AD engineer Responsibilities.

All Tier 2 AD engineer responsibilities

A detailed drill-down to the schema, and practical strategies and examples for extending it

Using Active Directory hierarchies to implement an effective structure for your network

Document and standardise standards for provisioning, operations and maintenance of Active Directory

Secure remote administration of the DCs and member servers managed by the Infrastructure Group

Manage group policy at root of domain and for Domain Controllers OU

Install and manage security reporting tools used to monitor changes to the Active Directory

Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…